-
公开(公告)号：US10855977B2
公开(公告)日：2020-12-01
申请号：US15897633
申请日：2018-02-15
Applicant: Google LLC
Inventor： John D. Perreault , Patrick Llull
IPC: H04N13/04 , H04N9/47 , H04N13/383 , G02B27/00 , G02B27/01 , G02B30/26 , G02B30/27 , H04N13/128 , H04N13/305 , H04N13/344 , G02F1/29
Abstract: A near-eye display system includes a display panel to display a near-eye lightfield frame comprising an array of elemental images and an eye tracking component to track a pose of a user's eye. The system further includes a lenslet array and a rendering component to adjust the focal points of the array of elemental images in the integral lightfield frame based on the pose of the user's eye. A method of operation of the near-eye display system includes determining, using an eye tracking component of the near-eye display system, a first pose of a user's eye and determining a desired focal point for an array of elemental images forming an integral lightfield frame based on the first pose of the user's eye. The method further includes changing the focal length of light projecting out of a lenslet array based on the first pose of the user's eye.
-
公开(公告)号：US10764552B2
公开(公告)日：2020-09-01
申请号：US15897611
申请日：2018-02-15
Applicant: Google LLC
Inventor： John D. Perreault , Patrick Llull
IPC: H04N13/117 , G02B27/01 , H04N13/307 , H04N13/332 , H04N13/383 , G06T15/00 , G02B3/00 , G02B5/00 , G02B30/26
Abstract: A near-eye display system includes display panel to display a near-eye lightfield frame comprising an array of elemental images and a lenslet array to present the integral lightfield frame to a user's eye. The system further includes a rendering component to generate an array of elemental images based at least in part on a sparse sampling of a source image to decrease an overlap of image data contained within each individual elemental of the array of elemental images. A method of operation of the near-eye display system includes generating an array of elemental images forming the integral lightfield frame based on a sparse sampling of the current viewpoint of the subject object to decrease an overlap of image data contained within each individual elemental image of the array.
-
公开(公告)号：US20190243134A1
公开(公告)日：2019-08-08
申请号：US16148489
申请日：2018-10-01
Applicant: Google LLC
Inventor： John D. Perreault , Patrick Llull , Brion Koprowski
CPC classification number: G02B27/0101 , G02B5/3083 , G02B26/08 , G02B27/0056 , G02B27/0172
Abstract: A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. The beam steering assembly includes a birefringent plate configurable to replicate a light ray incident on the beam steering assembly such that the replicated light ray is laterally shifted relative to an optical path of the light ray incident on the beam steering assembly.
-
公开(公告)号：US20190129174A1
公开(公告)日：2019-05-02
申请号：US15832275
申请日：2017-12-05
Applicant: Google LLC
Inventor： John D. Perreault
Abstract: A display system, such as a head mounted display, tracks a pose of a user's eye based on multiple perspectives of the eye captured via a segmented optics array, such as a lenslet array or Fresnel lens. The display system reflects light (e.g., infra-red light) off each segment of the segmented optics array, and captures an image based on the reflected light. Because of the segmented optics, the captured image represents multiple concurrent perspectives of the user's eye. The display system analyzes the different perspectives and selects a perspective, or combination of perspectives, and based on the selected perspective or combination, identifies a pose of the user's eye.
-
公开(公告)号：US11887550B2
公开(公告)日：2024-01-30
申请号：US17639406
申请日：2019-12-12
Applicant: GOOGLE LLC
Inventor： Patrick Llull , John D. Perreault , Andrew Huibers
CPC classification number: G09G3/3426 , G06F3/012 , G06F3/013 , G09G5/026 , G09G2320/028 , G09G2320/0285
Abstract: A display system including a tracking subsystem configured to track one of a pose of a head of a viewer or a pose of an eye of the viewer. The display system further includes an image correction module configured to, for each pixel of at least a subset of pixels of an input image, determine a pixel view angle for the pixel based on the pose of the head or the pose of the eye, determine a corrected pixel value based on an input pixel value of the pixel in the input image and based on the pixel view angle; and provide the corrected pixel value for the pixel in an angle-corrected image corresponding to the input image. The display system further includes a display panel to display the angle-corrected image.
-
Patent Agency Ranking
公开(公告)号：US10659771B2
公开(公告)日：2020-05-19
申请号：US15952508
申请日：2018-04-13
Applicant: Google LLC
Inventor： John D. Perreault , Patrick Llull
IPC: H04N13/00 , H04N13/344 , H04N13/307 , G02B27/01 , G02B3/00 , H04N13/383
Abstract: A near-eye display system includes one or more non-planar display panels and a lenslet array to display a near-eye lightfield frame. The near-eye display system further includes a rendering component to render, based on a stereoscopic focus volume associated with a set of display geometry data of the one-or more non-planar display panels, the array of elemental images in the near-eye lightfield frame such that objects within the stereoscopic focus volume are perceived to be in focus by the user's eye. A method of operation of the near-eye display system includes receiving display geometry data for one or more non-planar display panels of the near-eye display system and rendering, based on a stereoscopic focus volume, an array of elemental images at a position within a near-eye lightfield frame such that the non-planar display panels presents objects within the stereoscopic focus volume to be in focus.
-
公开(公告)号：US20240338851A1
公开(公告)日：2024-10-10
申请号：US18262813
申请日：2022-09-01
Applicant: GOOGLE LLC
Inventor： John D. Perreault
IPC: G06T7/80 , H04N13/327
CPC classification number: G06T7/80 , H04N13/327 , G06T2207/30204 , G06T2207/30244
Abstract: Techniques of calibrating telepresence videoconferencing displays and cameras include providing 6 DoF camera locations and orientation vectors in display reference frame based on a plurality of images that indicate specified mirror-plane points of a mirror and specified reflected display plane points. In some implementations. the specified mirror-plane points are located at fiducial markers printed on the mirror. In some implementations. the specified reflected display plane points are located in a checkerboard pattern of fiducial markers on the display.
-
公开(公告)号：US20220400245A1
公开(公告)日：2022-12-15
申请号：US17767372
申请日：2021-03-02
Applicant: GOOGLE LLC
Inventor： John D. Perreault , Andrew Huibers
IPC: H04N13/32 , H04N13/305 , H04N13/383 , H04N13/368
Abstract: An autostereoscopic display system includes a transmissive display panel including a backlight having an array of backlight pixels, a selectively-selectively-transmissive display pixel matrix having a first side facing the backlight and an opposing second side, the selectively-transmissive display pixel matrix comprising an array of display pixels, a first lenticular array disposed between the backlight and the first side of the selectively-transmissive display pixel matrix, and a second lenticular array disposed facing the second side of the selectively-transmissive display pixel matrix. The backlight is configured to separately activate different subsets of the backlight pixels such that light emitted from an activated subset of backlight pixels and transmitted through the first lenticular array, the selectively-transmissive display pixel matrix, and the second lenticular array is emitted by the display panel as display light in a corresponding separate direction relative to the display panel.
-
公开(公告)号：US20220337807A1
公开(公告)日：2022-10-20
申请号：US17596783
申请日：2021-04-15
Applicant: Google LLC
Inventor： John D. Perreault
IPC: H04N13/398 , H04N13/305 , H04N17/00 , H04N13/383 , H04N13/125
Abstract: Techniques of crosstalk compensation include performing a crosstalk measurement operation on each of a plurality of cells of a display to produce a plurality of crosstalk measurement, and then in response to detecting an observer in a field of view (FOV) of the display, performing a crosstalk compensation operation on each of the plurality of cells to reduce crosstalk to below a perceptual threshold of the observer. Each cell produces luminance over a series of repeat zones, with each repeat zone being a left or right channel and the repeat zones alternating these channels. A computer may measure the crosstalk by analyzing the values of the luminance over phase within each repeat zone. In some implementations, each cell is associated with a lookup table of crosstalk values. When an observer is detected in the FOV of the display, the computer performs a crosstalk compensation operation using the measured luminance values.
-
公开(公告)号：US11181801B2
公开(公告)日：2021-11-23
申请号：US15889796
申请日：2018-02-06
Applicant: Google LLC
Inventor： John D. Perreault , Patrick Llull , Brion Koprowski
Abstract: A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. A method of operation of the near-eye display system includes configuring the beam steering assembly in a first configuration state so that the beam steering assembly displaces a light beam incident on the beam steering assembly, such that the displaced light beam is laterally shifted relative to an optical path of the light beam.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.016 seconds)
